CN212442813U

CN212442813U - Alloy punch

Info

Publication number: CN212442813U
Application number: CN202021025912.1U
Authority: CN
Inventors: 周瑞华; 陈瑛; 蒋峰
Original assignee: Fulaike Suzhou Cutting Tools Co ltd
Current assignee: Fulaike Suzhou Cutting Tools Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-02-02
Anticipated expiration: 2030-06-05

Abstract

The utility model relates to an alloy punch, it includes the drift body, and the drift body includes die-cut portion, connecting portion and the fixed part that sets gradually along the direction of punching a hole, and the terminal surface slope setting that connecting portion were kept away from to die-cut portion just is the acute angle with the contained angle of horizontal plane, and the one end that die-cut portion is close to the mounting hole is greater than the one end that die-cut portion kept away from the mounting hole along the ascending length in direction of punching a hole along the ascending length in direction of punching. The utility model discloses have the effect of carrying out laborsaving production.

Description

Alloy punch

Technical Field

The utility model belongs to the technical field of the technique of the drift that punches and specifically relates to an alloy drift is related to.

Background

The bolt thread insert is a special fastener with threads on the inner side and the outer side, four or two bolt keys are arranged on the outer threads, the bolt thread insert is arranged in the tapped bottom hole, and then the two bolts are pressed in to play a strong fastening role. Wherein the drilling and tapping are exactly the same as the machining of a normal internal thread. Before the bolt is pressed into the external thread, two opposite mounting holes for accommodating the bolt are arranged in the bottom hole in advance.

Chinese patent with publication number CN208866237U discloses a punch, including base member and the tool bit that different materials made, the hardness of tool bit is greater than the hardness of base member, and base member and tool bit pass through welding integrated into one piece, and the tool bit includes connecting portion and die-cut portion, the cross-section of connecting portion and the cross-section adaptation of base member to the welding of base member and tool bit, base member and connecting portion pass through friction weld integrated into one piece, are provided with the positioner who is convenient for friction weld between base member and connecting portion.

The above prior art solutions have the following drawbacks: the die-cut portion is the plane, needs whole plane to press to the bottom outlet and punches the mounting hole when punching a hole. When the punching is carried out on the whole plane, the contact area between the punching part and the bottom hole is larger at the moment of contact between the punching part and the bottom hole. Because the larger the contact area, the lower the pressure generated at a given pressure value. Therefore, when the punching part punches a hole, a mounting hole needs to be punched by a large impact force, which is not in accordance with the time-saving and labor-saving production concept.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims at providing an alloy drift, it has the advantage of carrying out laborsaving production.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an alloy punch, includes the drift body, the drift body includes die-cut portion, connecting portion and the fixed part that sets gradually along the direction of punching a hole, the terminal surface slope that connecting portion were kept away from to die-cut portion sets up and is the acute angle with the contained angle of horizontal plane, the one end that die-cut portion is close to the mounting hole is greater than the one end that die-cut portion kept away from the mounting hole along the ascending length in direction of punching a hole.

Through adopting above-mentioned technical scheme, die-cut portion is close to the one end of mounting hole and is greater than die-cut portion and keep away from the one end of mounting hole along the ascending length of the direction of punching a hole along the one end of punching a hole, and when punching a hole, die-cut portion and bottom outlet contact in the twinkling of an eye, make die-cut portion be close to the one end of mounting hole earlier with the bottom outlet contact, reduced area of contact for pressure increase can punch a hole under laborsaving condition and work.

The present invention may be further configured in a preferred embodiment as: back tapers are jointly arranged on the side faces, close to the mounting holes, of the punching part and the connecting part.

Through adopting above-mentioned technical scheme, can prevent that the mounting hole of beating is too coarse when die-cut portion and bottom outlet contact punch after the back taper sets up.

The present invention may be further configured in a preferred embodiment as: the angle of the inverted cone is 0.8-1.2 degrees.

By adopting the technical scheme, the back taper angle is 0.8-1.2 degrees, so that the punched mounting hole can be prevented from being too rough, and the good straightness of the punched mounting hole can be ensured.

The present invention may be further configured in a preferred embodiment as: the side face of the punching part close to the mounting hole is arc-shaped.

Through adopting above-mentioned technical scheme, convex side can prevent that die-cut portion is too sharp, fish tail staff.

The present invention may be further configured in a preferred embodiment as: the fixing part is cylindrical, the section of the fixing part in the direction perpendicular to the punching direction is a circular surface, and the circle center of the circular surface and the circle center of the circular side face, close to the mounting hole, of the punching part are located on the same straight line.

By adopting the technical scheme, after the polishing device is positioned at the same circle center, only one circle center needs to be positioned when the circular surface and the arc-shaped side surface are polished.

The present invention may be further configured in a preferred embodiment as: the punching part is positioned on one side, close to the mounting hole, of the end face of the connecting part.

Through adopting above-mentioned technical scheme, die-cut position can more conveniently distinguish the position that specifically punches a hole in one side of connecting portion.

The present invention may be further configured in a preferred embodiment as: and the punch body is provided with a cooling hole for introducing cooling liquid through the punch body.

Through adopting above-mentioned technical scheme, can produce a large amount of heats when the drift punches a hole, can let in the coolant liquid after the cooling hole is seted up, for the cooling of the process of punching a hole.

The present invention may be further configured in a preferred embodiment as: one end of the cooling hole is located on the side face of the connecting portion, and the other end of the cooling hole is located on one side, away from the mounting hole, of the end face, away from the connecting portion, of the punching portion.

Through adopting above-mentioned technical scheme, cooling hole one end is located the side of connecting portion, and the other end can let in the coolant liquid for the process of punching a hole cooling on being located the terminal surface of connecting portion.

To sum up, the utility model discloses a following at least one useful technological effect:

1. labor-saving production can be performed through the arrangement of the punching part, the connecting part and the fixing part;

2. through the setting of back taper, can guarantee the smoothness of mounting hole.

Drawings

FIG. 1 is a schematic view showing the overall structure of an alloy punch according to a first embodiment;

FIG. 2 is a side view of an alloy punch according to one embodiment;

FIG. 3 is a front view of an alloy punch according to one embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic view of the entire structure of the alloy punch according to the second embodiment.

In the drawings, 1, a punch body; 11. a punching section; 12. a connecting portion; 13. a fixed part; 14. back tapering; 2. and cooling the holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example one

Referring to fig. 1 and 2, for the utility model discloses an alloy punch, including punch body 1, punch body 1 includes die-cut portion 11, connecting portion 12 and the fixed part 13 of cylinder form that sets gradually along the direction of punching a hole. The connecting portion 12 and the fixing portion 13 have a larger cross-sectional area in a direction perpendicular to the punching direction than the die-cut portion 11, i.e., the connecting portion 12 and the fixing portion 13 are thicker than the die-cut portion 11, and the die-cut portion 11 is located on the side of the end face of the connecting portion 12 close to the mounting hole. The side face, close to the mounting hole, of the punching part 11 is arc-shaped, the outer side wall of the connecting part 12 is a circular wall, the cross section of the fixing part 13 in the direction perpendicular to the punching direction is a circular surface, and the circle center of the arc-shaped circle, the circle center of the circular wall and the circle center of the circular surface are located on the same straight line consistent with the punching direction, so that the alloy punch is convenient to produce and process.

Referring to fig. 3, the end face of the punching portion 11 far away from the connecting portion 12 is inclined and forms an acute angle with the horizontal plane, and the length of the end of the punching portion 11 near the mounting hole in the punching direction is greater than the length of the end of the punching portion far away from the mounting hole in the punching direction, that is, the end face of the punching portion 11 has a tip and the tip is close to the mounting hole.

Referring to fig. 3 and 4, the die-cut portion 11 and the connecting portion 12 have an inverted taper 14 formed on their side surfaces adjacent to the mounting hole. The angle of the inverted cone 14 is alpha, and the alpha is 0.8-1.2 degrees. The number of defects is the number of pits or burrs at the punched part, and the deviation angle is the deviation angle between the actual punched hole and the expected punched hole. The actual test results are as follows:

example two

Referring to fig. 5, the present embodiment is different from the first embodiment in that: the punch body 1 is provided with a cooling hole 2 for passing cooling liquid through the punch body 1. One end of the cooling hole 2 is located on the side of the connecting portion 12 away from the mounting hole, and the other end is located on the side of the end face of the blanking portion 11 away from the connecting portion 12 away from the mounting hole.

The implementation principle of the above embodiment is as follows:

the alloy punch comprises a punch body 1, wherein the punch body 1 comprises a punching part 11, a connecting part 12 and a cylindrical fixing part 13 which are sequentially arranged along a punching direction. The terminal surface slope that die-cut portion 11 kept away from connecting portion 12 sets up and is the acute angle with the contained angle of horizontal plane, has seted up back taper 14 jointly on die-cut portion 11 and connecting portion 12 are close to the side of mounting hole.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An alloy drift, includes drift body (1), its characterized in that: drift body (1) includes die-cut portion (11), connecting portion (12) and fixed part (13) that set gradually along the direction of punching a hole, the terminal surface slope that connecting portion (12) were kept away from in die-cut portion (11) sets up and is the acute angle with the contained angle of horizontal plane, die-cut portion (11) are close to the one end of mounting hole and are greater than die-cut portion (11) and keep away from the one end of mounting hole along the ascending length of the direction of punching a hole along die-cut portion (11).

2. An alloy punch as defined in claim 1, wherein: and reverse cones (14) are jointly arranged on the side surfaces, close to the mounting holes, of the punching part (11) and the connecting part (12).

3. An alloy punch as defined in claim 2, wherein: the angle of the inverted cone (14) is 0.8-1.2 degrees.

4. An alloy punch as defined in claim 1, wherein: the side face, close to the mounting hole, of the punching part (11) is arc-shaped.

5. An alloy punch as defined in claim 4, wherein: the fixing portion (13) is cylindrical, the section of the fixing portion (13) in the direction perpendicular to the punching direction is a circular surface, and the circle center of the circular surface and the circle center of the circular side face, close to the mounting hole, of the punching portion (11) are located on the same straight line.

6. An alloy punch as defined in claim 1, wherein: the punching part (11) is positioned on one side, close to the mounting hole, of the end face of the connecting part (12).

7. An alloy punch as defined in claim 1, wherein: and a cooling hole (2) for introducing cooling liquid is formed in the punch body (1) in a way of penetrating through the punch body (1).

8. An alloy punch as defined in claim 7, wherein: one end of the cooling hole (2) is located on the side face of the connecting portion (12), and the other end of the cooling hole (2) is located on one side, away from the mounting hole, of the end face, away from the connecting portion (12), of the punching portion (11).